The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2019
Filed:
May. 12, 2015
Boe Technology Group Co., Ltd., Beijing, CN;
Ordos Yuansheng Optoelectronics Co., Ltd., Ordos, CN;
Ang Xiao, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., Ordos, CN;
Abstract
The laser sintering device includes a laser sintering head configured to output a laser beam toward a material to be sintered on a device to be sintered, so as to sinter the material to be sintered, and a heating unit configured to, prior to and/or subsequent to sintering the material with the laser sintering head, heating the material to be sintered and/or the sintered material. The material to be sintered is preheated by the heating unit prior to sintering the material to be sintered, and/or the sintered material is annealed by the heating unit subsequent to sintering the material to be sintered, so as to reduce a difference between a temperature before the sintering and a temperature during the sintering, and/or reduce a cooling rate after the sintering, thereby to reduce a shrinkage stress applied to the material to be sintered and the device to be sintered.